docs: def qt4_plugins_binaries(plugin_type):
      """Return list of dynamic libraries formated for mod.binaries."""
      binaries = []
      pdir = qt4_plugins_dir()
      files = misc.dlls_in_dir(os.path.join(pdir, plugin_type))
      for f in files:
          binaries.append((
              os.path.join('qt4_plugins', plugin_type, os.path.basename(f)),
              f, 'BINARY'))
      return binaries